[issue2636] Adding a new regex module (compatible with re)

STINNER Victor added the comment: It's now a third party project: https://pypi.org/project/regex/ If someone wants to move it into the Python stdlib, I suggest to start on the python-ideas list first. I close the issue as REJECTED. -- nosy: +vstinner resolution: -> rejected stage:

[issue2636] Adding a new regex module (compatible with re)

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Matthew Barnett added the comment: The page on PyPI says where the project's homepage is located: Home Page: https://code.google.com/p/mrab-regex-hg/ The bug was fixed in the last release. -- ___ Python tracker __

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Mateon1 added the comment: Well, I am reporting it here, is this not the correct place? Sorry if it is. -- ___ Python tracker ___ ___ P

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Matthew Barnett added the comment: @Mateon1: "I hope it's fixed"? Did you report it? -- ___ Python tracker ___ ___ Python-bugs-list mai

[issue2636] Adding a new regex module (compatible with re)

Mateon1 added the comment: Well, I found a bug with this module, on Python 2.7(.5), on Windows 7 64-bit when you try to compile a regex with the flags V1|DEBUG, the module crashes as if it wanted to call a builtin called "ascii". The bug happened to me several times, but this is the regexp whe

[issue2636] Adding a new regex module (compatible with re)

Jeffrey C. Jacobs added the comment: If I recall, I started this thread with a plan to update re itself with implementations of various features listed in the top post. If you look at the list of files uploaded by me there are seme complete patches for Re to add various features like Atomic G

[issue2636] Adding a new regex module (compatible with re)

Nick Coghlan added the comment: Thanks for pushing this one forward Serhiy! Your approach sounds like a fine plan to me. -- ___ Python tracker ___

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Ezio Melotti added the comment: Ok, regardless of what will happen, increasing test coverage is a worthy goal. We might start by looking at the regex test suite to see if we can import some tests from there. -- ___ Python tracker

[issue2636] Adding a new regex module (compatible with re)

Serhiy Storchaka added the comment: > So you are suggesting to fix bugs in re to make it closer to regex, and then > replace re with a forked subset of regex that doesn't include advanced > features, or just to fix/improve re until it matches the behavior of regex? Depends on what will be easier

[issue2636] Adding a new regex module (compatible with re)

Ezio Melotti added the comment: So you are suggesting to fix bugs in re to make it closer to regex, and then replace re with a forked subset of regex that doesn't include advanced features, or just to fix/improve re until it matches the behavior of regex? If you are suggesting the former, I wou

[issue2636] Adding a new regex module (compatible with re)

Serhiy Storchaka added the comment: > Exciting. Perhaps you should post your plan on python-dev. Thank you Antoine. I think all interested core developers are already aware about this issue. A disadvantage of posting on python-dev is that this would require manually copy links and may be title

[issue2636] Adding a new regex module (compatible with re)

Antoine Pitrou added the comment: > Here is my (slowly implemented) plan: Exciting. Perhaps you should post your plan on python-dev. In any case, huge thanks for your work on the re module. -- ___ Python tracker _

[issue2636] Adding a new regex module (compatible with re)

Serhiy Storchaka added the comment: Here is my (slowly implemented) plan: 0. Recommend regex as advanced replacement of re (issue22594). 1. Fix all obvious bugs in the re module if this doesn't break backward compatibility (issue12728, issue14260, and many already closed issues). 2. Deprecate

[issue2636] Adding a new regex module (compatible with re)

Nick Coghlan added the comment: Even with in principle approval from Guido, this idea still depends on volunteers to actually write up a concrete proposal as a PEP (which shouldn't be too controversial, given Guido already OK'ed the idea) and then do the integration work to incorporate the code,

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Mark Lawrence added the comment: Will we actually get regex into the standard library on this pass? -- nosy: +BreamoreBoy versions: +Python 3.5 -Python 3.4 ___ Python tracker ___

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Nick Coghlan added the comment: I've been working through the "known crashers" list in the stdlib. The recursive import one was fixed with the migration to importlib in 3.3, the compiler one will be fixed in 3.3.1 (with an enforced nesting limit). One of those remaining is actually a pathologi

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Sandro Tosi added the comment: I've just uploaded regex into Debian: this will hopefully gives some more eyes looking at the module and reporting some feedbacks. -- nosy: +sandro.tosi ___ Python tracker __

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Antoine Pitrou added the comment: > It'd be nice if we had some sort of representative benchmark for > real-world uses of Python regexps. The JS guys have all pitched in to > create such a thing for uses of regexps on thew web. I don't know of > any such thing for Python. See http://hg.python.o

[issue2636] Adding a new regex module (compatible with re)

Devin Jeanpierre added the comment: It'd be nice if we had some sort of representative benchmark for real-world uses of Python regexps. The JS guys have all pitched in to create such a thing for uses of regexps on thew web. I don't know of any such thing for Python. I agree that a Python impl

[issue2636] Adding a new regex module (compatible with re)

Georg Brandl added the comment: Well, REs are very often used to process large chunks of text by repeated application. So if the whole operation takes 0.1 or 20 seconds you're going to notice :) -- ___ Python tracker

[issue2636] Adding a new regex module (compatible with re)

Devin Jeanpierre added the comment: > In practice, I expect that a pure Python implementation of a regular > expression engine would only be fast enough to be usable on PyPy. Not sure why this is necessarily true. I'd expect a pure-Python implementation to be maybe 200 times as slow. Many que

[issue2636] Adding a new regex module (compatible with re)

Nick Coghlan added the comment: Alex has a valid point in relation to PEP 399, since, like lzma, regex will be coming in under the "special permission" clause that allows the addition of C extension modules without pure Python equivalents. Unlike lzma, though, the new regex engine isn't a rel

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